As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURNBACK AT 17,000 LVL FLT RIGHT GENERATOR FAILED ALONG WITH AIRFRAME VIBRATION. APU GEN OPER OK. SERVICED RIGHT IDG, RAN ENGINE AND NO VIBRATIONS. NO HISTORY. CREW DID NOT DISCONNECT IDG. DISCONNECTED IDG AND FWD TO MCO/PLC PER MEL 24-00-01.